<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- 带边框的表单 -->
    <form action="">
        <fieldset style="width: 300px;">
            <legend>PersonInformation</legend>
            name: <input type="text" name="user" size="30"><br>
            e-mail: <input type="email" name="mail" size="30">
        </fieldset>
    </form>
</body>
</html>